Apple should build Voice over Internet Telephony (VoIP) products, Business Week suggests this morning.

In a passionate - and engaging - appeal, the title's Alex Salkever argues that the company could leverage its customer base to produce such a service, perhaps making it avaiable as a .Mac member benefit, or as a service for Mac users in general.

"Most ambitious would be to use the Macphone service to launch a new line of Apple-branded mobile phones, which the company has talked about for some time," Salkever writes.

The argument follows August's launch of a beta VoIP service from a company called Skype. 105,000 people have downloaded that company's software since it was released.

"Apple already has the pieces in place to do what Skype is doing," Salkever argues.